feat(kubernetes/shell): kubectl web shell and kubeconfig functionality EE-448 (#5229)

* feat(kubernetes/shell): backport kubectl shell backend functionality EE-849 (#5168)

* backported core backend kubectl shell functionality

* - backported kubectl shell unit tests
- backported k8s cli interface update
- backported k8s client library fake patch

* refactored backend to match EE

* fixed test error typo

* GetServiceAccountName -> GetServiceAccount - making the function reusable in multiple contexts

* feat(kubernetes/shell): backport kubeconfig generation backend functionality EE-1004 (#5213)

* backported core backend kubectl shell functionality

* refactored backend to match EE

* - backported kubernetes backend handler implementation
- backported kubernetes config endpoint
- backported kubeconfig file generation
- backported kubeconfig and yaml unit tests
- backported updates to kubeclient interfaces

* feat(app): kubectl shell ui backport EE-927 (#5221)

* Kubectl UI backport to CE

* fix authentication redirect issue

* comment out redirect function

* fix shell full width & change name of shell

* disable button when terminal connected

* fixed whitespace changes for css

* fixed whitespace changes for html

* linting fixes

Co-authored-by: zees-dev <dev.786zshan@gmail.com>

* feat(kubernetes/shell): backport of kubeconfig export functionality EE-926 (#5228)

* EE backport of kubeconfig UI functionality

* using angularjs constant instead of hardcoded URL

* updated portainer kubectl shell image

* fix kubectl button position issue in ce

* fix pod keep running when switching page

* feat(app): Kubectl shell ui EE-833 EE-1099 (#5271)

* fix kubectl shell css

* fix mini css issue

* fix tech issue for ui changes from review

* delete unuse file

* - refactored variable names
- restored content-wrapper scroll
- created object to store wrapper css

Co-authored-by: zees-dev <dev.786zshan@gmail.com>

* addressing PR issues

* fix required changes from tech reviews (#5319)

* fix required changes from tech reviews

* remove unuse css variable

* component refactor accoridng to PR and style guidelines

Co-authored-by: zees-dev <dev.786zshan@gmail.com>

* removed redundant dockerhub api endpoint variable

* - autoHeight -> terminal-window
- removed redundant try-catch
- saving config.yaml file as config

* fix(kube/shell): show error on failure

* fixed default https bug

* resolved merge conflicts

Co-authored-by: Richard Wei <54336863+WaysonWei@users.noreply.github.com>
Co-authored-by: richard <richard@richards-iMac-Pro.local>
Co-authored-by: Chaim Lev-Ari <chiptus@gmail.com>

api/kubernetes/cli/pod_test.go

@@ -0,0 +1,67 @@
+package cli
+
+import (
+	"context"
+	"testing"
+	"time"
+
+	v1 "k8s.io/api/core/v1"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	kfake "k8s.io/client-go/kubernetes/fake"
+)
+
+func Test_waitForPodStatus(t *testing.T) {
+
+	t.Run("successfully errors on cancelled context", func(t *testing.T) {
+		k := &KubeClient{
+			cli:        kfake.NewSimpleClientset(),
+			instanceID: "test",
+		}
+
+		podSpec := &v1.Pod{
+			ObjectMeta: metav1.ObjectMeta{Name: "test", Namespace: defaultNamespace},
+			Spec: v1.PodSpec{
+				Containers: []v1.Container{
+					{Name: "test-pod", Image: "containous/whoami"},
+				},
+			},
+		}
+
+		ctx, cancel := context.WithCancel(context.TODO())
+		cancel()
+		err := k.waitForPodStatus(ctx, v1.PodRunning, podSpec)
+		if err != context.Canceled {
+			t.Errorf("waitForPodStatus should throw context cancellation error; err=%s", err)
+		}
+	})
+
+	t.Run("successfully errors on timeout", func(t *testing.T) {
+		k := &KubeClient{
+			cli:        kfake.NewSimpleClientset(),
+			instanceID: "test",
+		}
+
+		podSpec := &v1.Pod{
+			ObjectMeta: metav1.ObjectMeta{Name: "test", Namespace: defaultNamespace},
+			Spec: v1.PodSpec{
+				Containers: []v1.Container{
+					{Name: "test-pod", Image: "containous/whoami"},
+				},
+			},
+		}
+
+		pod, err := k.cli.CoreV1().Pods(defaultNamespace).Create(podSpec)
+		if err != nil {
+			t.Errorf("failed to create pod; err=%s", err)
+		}
+		defer k.cli.CoreV1().Pods(defaultNamespace).Delete(pod.Name, nil)
+
+		ctx, cancelFunc := context.WithTimeout(context.TODO(), 0*time.Second)
+		defer cancelFunc()
+		err = k.waitForPodStatus(ctx, v1.PodRunning, podSpec)
+		if err != context.DeadlineExceeded {
+			t.Errorf("waitForPodStatus should throw deadline exceeded error; err=%s", err)
+		}
+	})
+
+}